Radial pins
- Thread starter slim123
- Start date
DeeDeeCues
Well-known member
The advantage is that tons of people think they are great pins and have convinced themselves that they play better with a cue that has a radial pin.
The disadvantage is that they are a trash design which ignores all the engineering standards developed for threaded connections developed over a couple of hundred years.
I'm just a hobbyist, but I would add to the disadvantage is that "radial pins" come in a wide variety of unspecified dimensions depending on where you buy them from. And even when buying from the official Atlas source, there seems to be quite a variance in dimension.
DeeDeeCues
Well-known member
I can't speak for that as I've never owned or worked on any, as a matter of general principle.
I'll agree that it is a major disadvantage.
We don't need ten different 3/8" pins, either, but most of them are based proper threads.
I'll even admit my hypocrisy and say that I have used modified 3/8 pins. I don't agree with using the minor diameter for alignment. Otherwise, they are very similar to traditional wood screw threads.
Really you state here you have never worked with them yet you are bashing them
I did ask for an opinion, however i'd rather hear it from someone that knows more
Hi Slim
Like ANY joint screw. They are an option. I offer many joint screws,
WHY?
Because I can.
Period! End of story.
Like ANY joint screw. They are an option. I offer many joint screws,
WHY?
Because I can.
Period! End of story.
DeeDeeCues
Well-known member
Ok. I didn't say that I've never been around them. It is blatantly obvious to any decent engineer that the idea is flawed.
But, go ahead and take the advice of people who are biased toward them because they invested money into the garbage.
Nice. I like that answer.... ALOT!
If people would like others to take thier opinions more seriously, AZ has a gallery section.
Show your work.
It will work wonders for your responses!
DeeDeeCues
Well-known member
I don't care how seriously people take my answers. A pretty picture of a cue doesn't attest to construction method or knowledge of sound engineering principles.
Yes Sir
I hear ya!
DeeDeeCues
Well-known member
To be sure, my advice and opinions may not be worth a Wheat buck, but I enjoy giving them.
Hi,
Interesting Subject.
I bought a Unilock Radial Tap from Atlas 15 years ago. If a customer requests this pin on a new cue it works perfect with the Unilock pin.
As for some of the other knock off pins out there it can be problematic getting a perfect interference fit.
Rick
DeeDeeCues
Well-known member
Why would anyone want an interference fit? Boeing doesn't even want an interference fit on the locating pins in their jigs and tooling, and those are never removed.
A lot of people should do a little research.
The radial screw has been around for decades in the pool world.with no major issues.
Not even close.to the issues 3/8 10.and the many variants it has..
I see there is long threads on the subject and some of the people who comments clearly know a lot more about the physics of screw design than me. Having said that, I've been doing this for ten years now and Radial pins hold up fine, they are easy to install and it's easy to tap the threads in the shaft. As I see it, there's only three "downsides" to Radial.
-1 The cost of the taps
-2 The somewhat limited availability of pins, especially the brass and Ti pins.
-3 If you make CF shafts, that phenolic insert needs to be really long as the specs call for the 5/16 hole to be drilled 2.3" deep.
The price of the taps have gone up quite a bit, but they are well made and lasts a long time.
-1 The cost of the taps
-2 The somewhat limited availability of pins, especially the brass and Ti pins.
-3 If you make CF shafts, that phenolic insert needs to be really long as the specs call for the 5/16 hole to be drilled 2.3" deep.
The price of the taps have gone up quite a bit, but they are well made and lasts a long time.
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The price gouging has Definately discouraged a lot of people. If I was just starting out, I admit, I may not offer the Radial as an option. The taps were a tough buy when they jumped to $95.
Now.....oh boy.
There a real tough buy at the ARE YOU NUTS price.
Now.....oh boy.
There a real tough buy at the ARE YOU NUTS price.
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What is a 3/8- 10f joint pin? Thanks